CN101786854A - Tailing cementing material - Google Patents
Tailing cementing material Download PDFInfo
- Publication number
- CN101786854A CN101786854A CN201010129082.1A CN201010129082A CN101786854A CN 101786854 A CN101786854 A CN 101786854A CN 201010129082 A CN201010129082 A CN 201010129082A CN 101786854 A CN101786854 A CN 101786854A
- Authority
- CN
- China
- Prior art keywords
- cementing material
- tailing
- tailings
- tailing cementing
- quality
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 49
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004568 cement Substances 0.000 claims abstract description 21
- 239000002893 slag Substances 0.000 claims abstract description 16
- 239000000292 calcium oxide Substances 0.000 claims abstract description 14
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000011268 mixed slurry Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 abstract 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003469 silicate cement Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000004520 agglutination Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- -1 rare Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a tailing cementing material, which comprises the following components in percentage by mass: 20 to 60 percent of sulphate aluminum cement, 15 to 55 percent of slag, 5 to 15 percent of anhydrous gypsum, and 5 to 10 percent of quick lime. The early strength tailing cementing material of the invention is prepared by uniformly mixing the components in proportion. The tailing cementing material of the invention is used for filling mines and can obviously improve the early strength of a tailing filled body. Satisfactory effects can be achieved by using the tailing cementing material in places having a relatively high requirement on the early strength or needing a relatively high backfilling speed. At the same time, the tailing cementing material can obviously improve the backfilling utilization rate of the tailing, save construction investment of surficial tailing reservoir and avoid environmental pollution.
Description
Technical field
The present invention relates to a kind of early-strength type mine tailings backfill tailing cementing material and methods for making and using same thereof, this tailing cementing material is specially adapted to the mine underground mining occasion higher to backfill scope of operation strength development rate request, belongs to mining and metallurgy and building material technical field.
Background technology
Filling mining method is a kind of effective ways that are used to exploit higher-grade non-ferrous metal, rare, precious metal and fire-prone and production technique complicated condition mineral deposit.The processing of the mine worked-out section that China adopts at present mainly contains: adopt near the direct landfill of the ettle mine; Or the employing beneficiation tailing, dry method or wet method backfill; Or adopt various powdery industrial residue dry method or wet method backfill; Adopt cement as consolidating material and tailings or powdery industrial residue associating slurrying, pumping backfill etc.In tailing cemented filling, it is ordinary Portland cement that maximum consolidating materials is used in the mine.Utilizing ordinary Portland cement is that material obtains easily as the topmost reason of consolidating material, and product performance are more stable, and the backfill operation is convenient, can satisfy the requirement of tailings backfill and mining operations substantially.But, production practice prove, utilize silicate cement as tailings backfill consolidating material, it is slow to carry tailings backfill operation occasion to show tailings cured body early strength tempo in the lower gravity flow of solid content, the defective that intensity is on the low side, influence exploitation construction speed especially when the mine underground mining need drive plan, is difficult to satisfy the requirement of tailings solidified earth early strength enhancement rate.
Chinese patent literature 200510044240.2 has been introduced a kind of preparation method of cementitous material speial for well cementing, has the high water-cement ratio characteristic, has overcome the little defective of ordinary Portland cement water cement ratio.But feed composition is more, production use complexity, and cost costliness, and bargh is difficult to bear, and does not see actual use.Therefore, press for a kind of early strength enhancement rate height of exploitation, early-strength type tailing cementing material with low cost.
Summary of the invention
Technical problem to be solved by this invention is exactly that the low water-solid ratio and the tailings cured body that are shown in the time of should overcoming ordinary Portland cement as tailing cementing material hang down the performance deficiency of early strength, to overcome the existing expensive defective of special-purpose consolidating material simultaneously, a kind of mine tailing cementing material of early-strength type is provided, and another object of the present invention also provides the preparation method and the purposes of above-mentioned materials.The characteristics of this tailing cementing material are exactly that the early strength development is very fast, and cost is moderate, and for the higher tailings backfill operation occasion of backfill rate request, the operation of this novel agglutination material is just comparatively obvious.
Technical scheme of the present invention is: a kind of tailing cementing material, and the shared quality percentage composition of its component and each component is respectively: aluminosulfate cement 20%-60%; Slag powders 15%-55%; Dehydrated gyp-5-15%; Unslaked lime 5-10%.
The present invention also provides the method for above-mentioned tailing cementing material, and its concrete steps are: with aluminosulfate cement, slag powders, dehydrated gyp-and the unslaked lime mixing that proportions, obtain tailing cementing material.Standby or the direct use of packing and storing.
Wherein preferred described unslaked lime and dehydrated gyp-tail over (quality) for 3-8% to 80 μ m square hole sieves through ball mill is levigate; Preferred aluminosulfate cement is that quality meets JC 714-1996 " quick hardening sulphoaluminate cement standard " regulation technical indicator quick hardening sulphoaluminate cement; Slag powders is for meeting the commodity slag powders of GB/T 18046-2008 " GBFS that is used for cement and concrete " regulation technical indicator; Lime is the commodity unslaked lime that quality meets JC/T 479-92 " unslaked lime standard " regulation technical indicator; Gypsum is natural dehydrated gyp-.
The present invention also provides the above-mentioned application of tailing cementing material in the backfill of mine tailings, it is characterized in that: tailings, tailing cementing material account for the 5-20% mixed of tailings quality by the tailing cementing material volume, add suitable quantity of water again, the add-on of water is controlled to be tailings and tailing cementing material pulp quality solid content is 65-75%, cooperate stirring to make uniform tailings of quality and tailing cementing material mixed slurry through stirrer, utilize the mine drop to cast by pipe-line transportation to worked-out section.
At tailings slurry solid content (mass percent) is under the condition of 65-75%, the early-strength type tailing cementing material that the present invention is proposed is with the volume of (accounting for the tailings mass percent) 5-20%, with plumbous zinc tailings stirring and evenly mixing, in the air after the maintenance 1 day the intensity of tailings cured body just can reach 1.0-2.0MPa, the later strength of tailings cured body can sustainable growth, has the good long term mechanical durability.
Wherein, aluminosulfate cement in early days with water generation chemical reaction, generate hydrated products such as a large amount of ettringite and hydrated calcium silicate, hardened glued tailings particle is simultaneously taking place self, guaranteed that effectively tailings solidifies the early strength of height; Between slag powders and gypsum and the lime chemical reaction taking place, further form hydrated calcium silicate and drated calcium aluminate, has guaranteed the sustainable growth of tailings cured body later strength.There is a suitable proportioning scope between aluminosulfate cement and slag powders, gypsum, the lime.
Beneficial effect:
The advantage that adopts consolidating material of the present invention to be used for mine tailings backfill is:
1) owing to used aluminosulfate cement, make the early strength of tailings cured body obtain increasing substantially;
2) owing to having adopted slag powders and lime, gypsum in the proportioning,, guaranteed the sustainable growth of the middle and later periods intensity of tailings cured body effectively by means of the late phase reaction between them;
3) owing to the raising of tailings cured body early strength, accelerated the job scheduling of production face, help enhancing productivity; Perhaps can reduce the usage quantity of consolidating material under identical strength level, thereby improve the backfill utilization ratio of tailings, environmental pollution is avoided in the construction investment that helps saving mine tailing storehouse, the face of land.
Embodiment
The technical scheme that proposes according to the present invention, the proportioning of early-strength type tailing cementing material (mass percent) is: aluminosulfate cement 20-60%, slag powders 15-55%, dehydrated gyp-5-15%, unslaked lime 5-10%.Buying meets the quick hardening sulphoaluminate cement and the commodity slag powders that meets GB/T 18046-2008 standard code of commodity 42.5 labels of JC 714-1996 standard code during enforcement.
Wherein, aluminosulfate cement and slag powders can directly be used, and unslaked lime and natural dehydrated gyp-must be 3-8% through levigate the tailing over to 80 μ m square hole sieves of ball mill.Again they are cooperated mixing according to aforementioned proportion, the standby or direct use of packing and storing.According to the strength development requirement of predefined tailings cured body, determine the volume of tailing cementing material during use,, implement backfill with the even mix of tailings.
Form with embodiment is described in detail as follows:
Embodiment 1
Aluminosulfate cement 400g, slag powders 450g, dehydrated gyp-100g, unslaked lime 50g, uniform mixing is made the early-strength type tailing cementing material.Get this tailing cementing material 150g, plumbous zinc tailings 1000g adds water 447ml, mix, and furnishing slip shape, the tailings cured body is made in maintenance in the normal temperature air.Similarity condition is preparation silicate cement tailings cured body down.Measured 1 day, 3 days, 7 days and the cured body intensity during 28 days curing age, the results are shown in following table:
Embodiment 2
Aluminosulfate cement 450g, slag powders 400g, dehydrated gyp-80g, unslaked lime 70g, uniform mixing is made the early-strength type tailing cementing material.Get this tailing cementing material 100g, plumbous zinc tailings 1000g adds water 471ml, mix, and furnishing slip shape, the tailings cured body is made in maintenance in the normal temperature air.Similarity condition is preparation silicate cement tailings cured body down.Measured 1 day, 3 days, 7 days and the cured body intensity during 28 days curing age, the results are shown in following table:
Embodiment 3
Aluminosulfate cement 300g, slag powders 550g, dehydrated gyp-110g, unslaked lime 60g, uniform mixing is made the early-strength type tailing cementing material.Get this tailing cementing material 200g, plumbous zinc tailings 1000g adds water 490ml, mix, and furnishing slip shape, the tailings cured body is made in maintenance in the normal temperature air.Similarity condition is preparation silicate cement tailings cured body down.Measured 1 day, 3 days, 7 days and the cured body intensity during 28 days curing age, the results are shown in following table:
Claims (4)
1. tailing cementing material, the shared quality percentage composition of its component and each component is respectively: aluminosulfate cement 20%-60%, slag powders 15%-55%, dehydrated gyp-5-15%, unslaked lime 5-10%.
2. method for preparing tailing cementing material as claimed in claim 1, its concrete steps are: with aluminosulfate cement, slag powders, dehydrated gyp-and the unslaked lime mixing that proportions, obtain tailing cementing material.
3. method according to claim 1 is characterized in that levigate to tail over quality to 80 μ m square hole sieves be 3-8% through ball mill for described unslaked lime and dehydrated gyp-.
4. the application of tailing cementing material as claimed in claim 1 in the backfill of mine tailings, it is characterized in that: tailings, tailing cementing material account for the 5-20% mixed of tailings quality by the tailing cementing material volume, add suitable quantity of water again, the add-on of water is controlled to be tailings and tailing cementing material pulp quality solid content is 65-75%, cooperate stirring to make uniform tailings of quality and tailing cementing material mixed slurry through stirrer, utilize the mine drop to cast by pipe-line transportation to worked-out section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010129082.1A CN101786854A (en) | 2010-03-22 | 2010-03-22 | Tailing cementing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010129082.1A CN101786854A (en) | 2010-03-22 | 2010-03-22 | Tailing cementing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101786854A true CN101786854A (en) | 2010-07-28 |
Family
ID=42530254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010129082.1A Pending CN101786854A (en) | 2010-03-22 | 2010-03-22 | Tailing cementing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101786854A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241493A (en) * | 2011-04-19 | 2011-11-16 | 广东红墙新材料股份有限公司 | Pit backfill material, preparation method thereof and application method thereof |
| CN102531482A (en) * | 2012-01-12 | 2012-07-04 | 瓮福（集团）有限责任公司 | Filling slurry for filling mining method and preparation method for filling slurry |
| CN103396018A (en) * | 2013-08-02 | 2013-11-20 | 大连铭源全建材有限公司 | Concretionary material for even frozen soil and sludge |
| US9321681B2 (en) | 2012-04-27 | 2016-04-26 | United States Gypsum Company | Dimensionally stable geopolymer compositions and method |
| CN105712688A (en) * | 2016-01-27 | 2016-06-29 | 济南大学 | Fluorogypsum-based mine filling material and use method thereof |
| CN105971605A (en) * | 2016-03-11 | 2016-09-28 | 河北工程大学 | A non-waste mining method for underground mines |
| US9624131B1 (en) | 2015-10-22 | 2017-04-18 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| US9656916B2 (en) | 2012-04-27 | 2017-05-23 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| CN107473680A (en) * | 2017-09-21 | 2017-12-15 | 山东安实绿色开采技术发展有限公司 | A kind of flyash high-water expansion cementing automatic filling material, system and technique |
| CN108147684A (en) * | 2016-12-02 | 2018-06-12 | 临沂会宝岭铁矿有限公司 | A kind of Filling Cementation material formula and its application method |
| CN111460678A (en) * | 2020-04-16 | 2020-07-28 | 四川大学 | Filling rate optimization method of cement cementing material |
| CN112876158A (en) * | 2021-02-03 | 2021-06-01 | 中科聚垚环保新材料科技有限公司 | Cementing material capable of realizing fine-grade tailing filling and preparation method thereof |
| CN115477523A (en) * | 2022-09-23 | 2022-12-16 | 徐州和盛矿业科技有限公司 | Mineral inorganic composite material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343167A (en) * | 2007-07-10 | 2009-01-14 | 中国矿业大学(北京) | Backfilled enclosed material and its use method |
-
2010
- 2010-03-22 CN CN201010129082.1A patent/CN101786854A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343167A (en) * | 2007-07-10 | 2009-01-14 | 中国矿业大学(北京) | Backfilled enclosed material and its use method |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241493A (en) * | 2011-04-19 | 2011-11-16 | 广东红墙新材料股份有限公司 | Pit backfill material, preparation method thereof and application method thereof |
| CN102241493B (en) * | 2011-04-19 | 2012-11-14 | 广东红墙新材料股份有限公司 | Pit backfill material, preparation method thereof and application method thereof |
| CN102531482A (en) * | 2012-01-12 | 2012-07-04 | 瓮福（集团）有限责任公司 | Filling slurry for filling mining method and preparation method for filling slurry |
| CN102531482B (en) * | 2012-01-12 | 2013-07-17 | 瓮福（集团）有限责任公司 | Filling slurry for filling mining method and preparation method for filling slurry |
| US10392307B2 (en) | 2012-04-27 | 2019-08-27 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9890082B2 (en) | 2012-04-27 | 2018-02-13 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9321681B2 (en) | 2012-04-27 | 2016-04-26 | United States Gypsum Company | Dimensionally stable geopolymer compositions and method |
| US10597327B2 (en) | 2012-04-27 | 2020-03-24 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9643888B2 (en) | 2012-04-27 | 2017-05-09 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9656916B2 (en) | 2012-04-27 | 2017-05-23 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US10221096B2 (en) | 2012-04-27 | 2019-03-05 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| CN103396018A (en) * | 2013-08-02 | 2013-11-20 | 大连铭源全建材有限公司 | Concretionary material for even frozen soil and sludge |
| CN103396018B (en) * | 2013-08-02 | 2015-10-28 | 大连铭源全建材有限公司 | A kind of eternal frozen ground and silt consolidation material |
| US9624131B1 (en) | 2015-10-22 | 2017-04-18 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| US10308552B2 (en) | 2015-10-22 | 2019-06-04 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| CN105712688A (en) * | 2016-01-27 | 2016-06-29 | 济南大学 | Fluorogypsum-based mine filling material and use method thereof |
| CN105971605B (en) * | 2016-03-11 | 2018-07-17 | 河北工程大学 | A kind of underground mines exploration without waster method |
| CN105971605A (en) * | 2016-03-11 | 2016-09-28 | 河北工程大学 | A non-waste mining method for underground mines |
| CN108147684A (en) * | 2016-12-02 | 2018-06-12 | 临沂会宝岭铁矿有限公司 | A kind of Filling Cementation material formula and its application method |
| CN107473680A (en) * | 2017-09-21 | 2017-12-15 | 山东安实绿色开采技术发展有限公司 | A kind of flyash high-water expansion cementing automatic filling material, system and technique |
| CN111460678A (en) * | 2020-04-16 | 2020-07-28 | 四川大学 | Filling rate optimization method of cement cementing material |
| CN112876158A (en) * | 2021-02-03 | 2021-06-01 | 中科聚垚环保新材料科技有限公司 | Cementing material capable of realizing fine-grade tailing filling and preparation method thereof |
| CN115477523A (en) * | 2022-09-23 | 2022-12-16 | 徐州和盛矿业科技有限公司 | Mineral inorganic composite material and preparation method thereof |
| CN115477523B (en) * | 2022-09-23 | 2024-01-05 | 徐州和盛矿业科技有限公司 | Mineral inorganic composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101786854A (en) | Tailing cementing material | |
| CN102562148B (en) | Iron tailings cementing-filling method | |
| CN102536315B (en) | Filling method of potash mine goaf | |
| CN103086620B (en) | Gelatinizing agent suitable for unclassified tailing filling | |
| CN104211313B (en) | A kind of phosphogypsum based cementitious material and the application in mine tailing filling | |
| CN103102089B (en) | Binding material for filling fine-grain tailings | |
| CN104045292B (en) | A kind of iron tailings filling solidifying agent and preparation method thereof | |
| CN103193429B (en) | Iron core tailing curing agent, iron core all-tailing cementing composition containing iron core tailing curing agent and application of iron core all-tailing cementing composition to gob of mine | |
| CN104987117B (en) | Environment protection architecture heat-barrier material | |
| CN102887693B (en) | Filling and consolidating powder for mining purposes and use thereof | |
| CN105565735B (en) | Sulfur-bearing tailings curing agent and sulfur-bearing tailing cemented filling material and the consolidated fill method of mine worked-out section | |
| CN104556885B (en) | A kind of pumpable coal mine gob backfill material and preparation method thereof | |
| AU7022398A (en) | High pulp density, fast setting and high early strength backfill method and material | |
| CN102234191A (en) | Early strength mine filling cementitious material | |
| CN102924005A (en) | Cementing materials with micro-expansion effect for mine filling | |
| CN103833243A (en) | Slag-based whole tailing gravity-flow filling cementing material and filling slurry preparation method thereof | |
| CN101948255B (en) | Preparation method of composite cement with low clinker dosage and high flexural compression ratio | |
| CN106915941B (en) | Half water ardealite mine filling material and preparation method thereof | |
| CN107365129A (en) | It is a kind of to utilize the method for being classified tail salt production sylvite ore cemented filling material | |
| CN104387007A (en) | Low-cost quick-setting expansible hole-sealing material applied to coal mine | |
| CN105198329A (en) | High-water-content filling material and preparation method and using method thereof | |
| CN105776911A (en) | Gel material for ultra-fine tailing filling and dry heaping | |
| CN105731948A (en) | Cementing agent for micro-fine-particle tailing cementing filling | |
| CN104891930A (en) | Special cementing material for fine-particle-scale gangue paste and preparation method | |
| CN102887682B (en) | Sintering-free washed-out sand sludge brick and preparation process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100728 |